Identification of voice pattern

Details Identification of voice pattern Identification of voice pattern

1990-04-16

1992-03-10

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

381 35, G10L 500

Patent

active

050955080

ABSTRACT:
A voice pattern identifying system includes a library for storing therein a plurality of registered voice patterns and a register array into which a sampled voice pattern is temporarily stored for comparison with said registered voice patterns one by one. The voice pattern is represented by a plurality of frames which are sampled at a predetermined time interval and each of which includes a predetermined number of data at different frequency ranges. The registered voice patterns are stored as compressed in the library so that each frame is accompanied by a compression data indicating how many times the corresponding frame should be repeated with time. In accordance with the present invention, there is provided a pattern compander which only modifies the compression data of either of the registered or sample voice pattern so as to make the number of frames identical before determination of the degree of similarity the two voice patterns.

REFERENCES:
patent: 3641496 (1972-02-01), Slavin
patent: 4297528 (1981-10-01), Beno
patent: 4489437 (1984-12-01), Fukuichi et al.
patent: 4570232 (1986-02-01), Shikano
patent: 4608708 (1986-08-01), Watanabe

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